<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" mode="" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <view class="goods-info-box">
      <view class="price">
        ￥{{goods_info.goods_price}}
      </view>
      <view class="goods-info-body">
        <view class="goods_name">
          {{goods_info.goods_name}}
        </view>
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">
        <text>快递:免运费 </text>
      </view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <view class="goods_nav">
      <uni-goods-nav :fill="true" :options="options"
      :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
    </view>
  </view>
</template>

<script>
  import {mapState} from 'vuex'
  import {mapMutations,mapGetters} from 'vuex'
  export default {
    watch:{
      // total(newVal) {
      //   const findResult = this.options.find((x) =>x.text === '购物车')
        
      //   if(findResult){
      //     findResult.info = newVal
      //   }
      // }
      total: {
        handler(newVal) {
            const findResult = this.options.find((x) =>x.text === '购物车')
            if(findResult){
              findResult.info = newVal
            }
        },
        //首次加载立即调用
        immediate: true
      }
    },
    computed:{
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart',['total'])
    },
    data() {
      return {
        goods_info: {},
        options:[{
          icon: 'shop',
          text: '店铺'
        },{
          icon: 'cart',
          text: '购物车',
          info: 0
        }],
        buttonGroup:[{
          text: '加入购物车',
          backgroundColor: '#ff0000',
          color: '#fff'
        },
        {
          text: '立即购买',
          backgroundColor: '#ffa200',
          color: '#fff'
        }
        ]
      };
    },
    onLoad(options) {
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id) {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/detail',
        {goods_id})
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        } else {
          res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
          this.goods_info = res.message
      
        }
      },
      preview(i) {
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x => x.pics_big)
        })
      },
      onClick(e){
        if(e.content.text ==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      ...mapMutations('m_cart',['addToCart']),
      buttonClick(e){
        if(e.content.text ==='加入购物车'){
          const goods = {
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price: this.goods_info.goods_price,
            goods_count: 1 ,
            goods_small_logo: this.goods_info.goods_small_logo,
            goods_state: true   //商品的勾选状态
          }
          
          this.addToCart(goods)
        }
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 750rpx;
    
     image {
        width: 100%;
        height: 100%;
      }
  }
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    .price{
      color: #C00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods_name{
        font-size: 13px;
        margin-right: 10px ;
      }
      .favi{
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left: 1px solid #efefef;
        color: gray;
        width: 120px;
        font-size: 12px;
      }
    }
    .yf{
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }
  .goods-detail-container {
    // 给页面外层的容器，添加 50px 的内padding，
    // 防止页面内容被底部的商品导航组件遮盖
    padding-bottom: 50px;
  }
  
  .goods_nav {
    // 为商品导航组件添加固定定位
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
</style>
